| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Jägerskiöld, L. A. | 1904 | 2 | – |
| Jagge, C. | 2002 | 1 | – |
| Jagodzinska, Z. | 1933 | 1 | – |
| Jahn, G. | 1990 | 1 | – |
| Jahyny, B. | 2004–2017 | 4 | 1 |
| Jahyny, B. J. B. | 2017–2024 | 3 | 1 |
| Jain, P. | 2001 | 1 | – |
| Jaisson P. | 1983 | 1 | – |
| Jaisson, P. | 1969–1998 | 11 | – |
| Jaitrong, W. | 2005–2024 | 68 | 98 |
| Jakob, A. | 1999 | 1 | – |
| Jakubisiak, S. | 1948 | 1 | – |
| Jallow, M. | 2024 | 1 | – |
| Janda, M. | 2004–2016 | 6 | 1 |
| Jandausch, K. | 2024 | 1 | – |
| Janet, C. | 1893–1923 | 28 | – |
| Jannatan, R. | 2021–2024 | 2 | – |
| Jansen, G. | 2009–2011 | 4 | – |
| Janssen, E. | 1995–1997 | 5 | – |
| Jantarit, S. | 2021 | 1 | 1 |
| Janzen, D. H. | 1966–2015 | 12 | – |
| Jaouni, T. | 1992 | 1 | – |
| Járdán, C. | 1993 | 1 | – |
| Jarernkong, K. | 2023 | 2 | 3 |
| Jarman, A. P. | 2025 | 1 | – |
| Jarzembowski, E. A. | 1993–2023 | 2 | 1 |
| Jayasuriya, A. K. | 1981–1986 | 4 | – |
| Jazini, F. | 2018 | 1 | 1 |
| Jeanne, R. L. | 1979–1988 | 2 | – |
| Jeannel, R. | 1932 | 1 | – |
| Jeantet, A.-Y. | 1969–1974 | 2 | – |
| Jeenthong, T. | 2022–2023 | 2 | 2 |
| Jefferson, E. | 1988 | 1 | – |
| Jeffery, H. G. | 1931 | 1 | – |
| Jégh, T. | 2024 | 1 | 1 |
| Jekel, H. | 1854 | 1 | – |
| Jell, P. A. | 1986 | 2 | – |
| Jemielity, S. | 2007 | 1 | – |
| Jennings, D. T. | 1986 | 1 | – |
| Jennings, J. T. | 2013 | 1 | – |
| Jensen, P. V. | 2000 | 1 | – |
| Jensen, T. F. | 1980–1982 | 3 | – |
| Jerdon, T. C. | 1851–1865 | 5 | 28 |
| Jermiin, L. S. | 1994–2000 | 4 | – |
| Jesovnik, A.; Ješovnik, A. | 2013–2018 | 8 | 4 |
| Jessen, K. | 1979–2020 | 12 | 11 |
| Jesus, C. M. de | 2010 | 2 | – |
| Jhering, H. | – | – | – |
| Ji, L. | 2012–2014 | 2 | – |
| Jia, F. | 2006 | 1 | 1 |
| Jiang, G. | 1997 | 1 | – |
| Jiménez-García, E. | 2023–2025 | 2 | – |
| Jiménez, E. | 2008 | 1 | – |
| Jiménez Rojas, J.; Jiménez, J. J. | 1991–1995 | 4 | – |
| Jin, D. C. | 2006 | 1 | – |
| Jiraungkoorskul, W. | 2020 | 1 | – |
| Jobson, S. | 1985 | 1 | – |
| Johnson, A. K. | 1988 | 1 | – |
| Johnson, B. R. | 2011–2013 | 4 | – |
| Johnson, C. | 1985–2001 | 11 | – |